dangerous function on residential property which will cause trespassing. All prevention is in the arms of owner.
naturally dangerous feature (an unguarded children's pool, like) of a property that could entice site visitors or trespassers to harm. The owner of the home is normally responsible for taking all tips (erecting a fence, for example) to prevent untoward happenings.
such a thing on your own premises that might attract young ones into risk or harm